Yes, I have set up three of the new Yoga Pro 2 units. It's a great unit but the ultra high 3200x1800 native resolution is a bit hard to use with LR. I agree with KKCFamilyman on his comments about the other Thinkpads. However, I don't agree with gshocked about 1920 x 1080 being too hard to use on a 12" screen. At least once you've seen 3200x1800 on a 13" screen!
Unfortunately, Windows doesn't scale well when you change away from native resolution regardless of the screen. Neither does Mac OS so don't assume a mac with retina is any better in this regard.
You might want to consider the laptop you buy mainly on other factors other than the screen (performance, size, weight, ergonomics, keyboard, battery life, ports, etc) and then connect it to a high quality external monitor for serious editing. It's pretty much impossible to find the perfect laptop for editing without an external monitor, etc.